MATT HART
type: MusicGroup
genre: darkwave
genre: ebm
genre: industrial
genre: industrial metal
popularity: 9
followers: 1259
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9be266fa30ddaa04458165fe345661e5bb5646d4766296dedffa779b22995dec
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be266fa30ddaa04458165fe345661e5bb5646d4766296dedffa779b22995dec. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97ec9957-33b3-4c76-b0f7-d569ed7ae727.json and https://artists.proofprofile.net/proofs/artist/97ec9957-33b3-4c76-b0f7-d569ed7ae727.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x9be266fa30ddaa04458165fe345661e5bb5646d4766296dedffa779b22995dec","name":"MATT HART","registered_at":"2026-06-17T18:38:28Z","symbol":"NIM1483814","token_address":"0xf363fb3fd568d86d7a8fa38117c2efa551f670b2","type":"artist","uuid":"97ec9957-33b3-4c76-b0f7-d569ed7ae727"}
album: CHAOS RISING
  type: MusicAlbum
  date published: 2017-09-24
album: Transition01
  type: MusicAlbum
  date published: 2018-01-07
album: The Anthology of Corrosion
  type: MusicAlbum
  date published: 2018-01-29
album: Chaos Rising 2
  type: MusicAlbum
  date published: 2018-04-02
album: Chaos Rising 3
  type: MusicAlbum
  date published: 2018-11-30
album: Superficial
  type: MusicAlbum
  date published: 2019-08-02
album: Deep Mind Formulates
  type: MusicAlbum
  date published: 2019-09-06
album: Outlaws
  type: MusicAlbum
  date published: 2019-10-04
album: Terra 3808
  type: MusicAlbum
  date published: 2019-11-02
album: Tales of Terra: Triolith
  type: MusicAlbum
  date published: 2020-03-06
album: Terrorfying
  type: MusicAlbum
  date published: 2020-10-30
album: JUST A REMIX
  type: MusicAlbum
  date published: 2020-12-21
album: TERRORFYING (MOAAN EXIS Remix)
  type: MusicAlbum
  date published: 2021-01-30
album: Terrorfying (Witch of the Vale remix)
  type: MusicAlbum
  date published: 2021-03-05
album: TALES OF TERRA RETOLD
  type: MusicAlbum
  date published: 2021-07-19
album: To The Core
  type: MusicAlbum
  date published: 2021-11-15
album: DECIMATE
  type: MusicAlbum
  date published: 2022-01-17
album: BELOW THE TERRA, Pt. 1
  type: MusicAlbum
  date published: 2022-03-15
album: ABSOLUTE ZERO (ROTERSAND CLASSIC RIDE REWORK) [ROTERSAND Remix]
  type: MusicAlbum
  date published: 2022-07-26
album: TERRAFORM
  type: MusicAlbum
  date published: 2022-11-18
album: TO THE CORE (AESTHETIC PERFECTION Remix)
  type: MusicAlbum
  date published: 2023-02-28
album: ROTATIONS (SINGLE)
  type: MusicAlbum
  date published: 2023-07-01
album: DEEP DOWN CITY
  type: MusicAlbum
  date published: 2023-09-12
album: BLACK ABYSS (ORIGINAL MIX)
  type: MusicAlbum
  date published: 2024-03-04
album: BLACK ABYSS (OPAL DUSK Remix)
  type: MusicAlbum
  date published: 2024-03-11
album: BLACK ABYSS (Modulate Remix)
  type: MusicAlbum
  date published: 2024-03-18
album: BLACK ABYSS (TEKNOVORE Remix)
  type: MusicAlbum
  date published: 2024-03-25
album: I'LL BE HOME FOR CHRISTMAS (VARIANT 3808 FEAT. SLITHER) [Cover]
  type: MusicAlbum
  date published: 2024-12-20
album: BELOW THE TERRA, Pt. 2
  type: MusicAlbum
  date published: 2024-12-31
album: CATHARTIC (11GRAMS Remix)
  type: MusicAlbum
  date published: 2025-07-04
album: WAREHOUSE 7 (CONNÖR Remix)
  type: MusicAlbum
  date published: 2025-07-25
album: DEEP DOWN CITY (PHIL ABLE Remix)
  type: MusicAlbum
  date published: 2025-08-15
track: Welcome to the Deep - Matt Hart Remix
  type: MusicRecording
  duration: PT3M49S
  duration ms: 229500
  explicit: false
  by artist: Chainreactor
  by artist: MATT HART
  in album: Welcome to the Deep
    type: MusicAlbum
    date published: 2024-07-26
  isrc code: QM7282436197
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282436197
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7612641cc1129bec17ef8a7d4119466c44031583b576a21fde1c4a0dfa31fc21. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282436197.
    date published: 2026-07-08T03:22:41Z
  audio: Welcome to the Deep - Matt Hart Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.056
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.526
    additional property: Energy
      type: PropertyValue
      value: 0.951
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.793

Liveness
type: PropertyValue
value: 0.401

Valence (Positivity)
type: PropertyValue
value: 0.195

Loudness (dB)
type: PropertyValue
value: -10.208

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major